Functional Description
IZ1503 - Digital CMOS Single-Button LED Control Chip start and auto shut off function. Has a built-in RC generator with typical frequency 77 kHz, internal current limiting resistors 75 Ohms.

Features
• CMOS technology
• Low power consumption
• Operation from 3V battery
• Built-in RC generator
• Open drain type output

Functions
• Single-shot mode Flash rate - 4.7 Hz
• Filling - 1/4
• Duration of a working cycle - 4,3 seconds
• Antiphase outputs